INSECTA MADERENSIA. 129 



(particularly of the RamaUna scopulonim and the Evernia prunastri), — in the 

 bunches of which on the exposed weather-beaten rocks of Porto Santo and the 

 Dezerta Grande I have observed it, hybernating, literally by thousands. As the 

 season advances, however, it would appear, partially, to leave the rocks, when it 

 may be found in grassy spots in theii* vicinity, — and frequently taking flight to 

 more distant localities. Thus, diu*ing April 18i8, I captured it even in the 

 gardens near Fuuchal, on the leaves of plants (especially those of the Sinapis 

 tribe) and in an exceedingly active state. A few weeks later however it was in 

 far greater abundance on the mountain-slopes of Porto Santo, where immediately 

 below the extreme summit of the Pico de Pacho it existed in the utmost pro- 

 fusion. In May of 1849, whilst encamped mth the Hev. R. T. Lowe high up in 

 the Ribeu'o de Santa Luzia, I took it in considerable numbers from amongst the 

 vegetation which clothes the lofty perpendicular edges of the ravine. As already 

 stated, it varies a good deal in the brightness of its colouring : and I have usually 

 remarked that the Porto Santan representatives are, on the average, of an obsciu-er 

 hue than the Madeii'an ones ; whilst those from the Dezerta Grande are somewhat 

 intermediate between the two. 



Fam. 11. COLYDIAD^. 



Genus 48. TARPHIUS. (Tab. III. fig. 4, 5 et 6.) 



(Germar) Ericli. Nat. der Ins. Beutscli. iii. 256 (1848). 



Corpus minusculum, subconvexum vel gibbosum, ssepius rugosum et lutosum : capite prothoraceque 

 granulis (plerumque crebris et valde obtusis) obsitis, granulo quoque setula parva, mediS, munito ; 

 illo prothoracis excavatione fere ad oculos inserto ; hoc amplo, in discum convexo, lateribus valde 

 complanatis, antice profunde emarginato caput recipiente : scutello minutissimo (vix observando) : 

 alls obsoletis. Antenna (III. 4 a) prothoracis longitudine, distantes, rectse, ante oculos et sub 

 margine capitis insertae, per otium sub lateribus concavis reponendie, articulo primo magno 

 crasso superne vix conspicuo, secundo sat robusto, sed primo paulo graciliore, subclavato apice 

 truncato, tertio gracili reliquis paulo longiore, quarto ad nonum longitudine decrescentibus vix 

 paulatim crassioribus, decimo et undecimo clavam magnam laxam abruptam biarticulatam 

 efficientibus, illo subpoculiformi intus interdum obscurissime producto, hoc subgloboso. Labrum 

 (III. 4 b) subquadratum angulis anticis rotundatis, margine ciliato. Mandibula (III. 4 c) validse, 

 apice edeutatfe acutae, intus medio leviter sinuatse ac lacinia niembranacea pubescenti instructse. 

 MaxilldE (III. 4>d) bilobje : lobo externa apice dilatato truncato, dense barbato : interna angustiore 

 vix breviore, valde ciliato, apice uncinato. Palpi maxillares articulo primo minuto, secundo et 

 tertio incrassatis, subfequalibus, ultimo robusto ovato, ad summum apicem subcarnoso et vix 

 oblique truncato : labiates articulis primo et secundo subfequalibus, illo gracdi, hoc subclavato, 

 ultimo ovato robusto ad apicem subcarnoso-subtruncato. Mentum (III. 4 e) subquadratum. 

 Ligula subrotundato-quadrata, antice valde ciliata. Pedes (III. 4/, 4^) cursorii, subcontractiles, 

 distantes : femoribm tibiisc[ne compressis, his gracilibus, extus ssepe obsoletissime erosis, aut 

 potius subserratis, et mox pone apicem subito subconstrictis, apicem subdilatatum efFormantibus : 

 tarsis (III. 4/, -iff, et 6) 4-articulatis, articulis tribus baseos subsequalibus intus valde barbatis, 



S 



